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Write an equation for the line parallel to g(x)= -2x-6 and passing through the point (7, 4) Write the answer in slop intercept form.

User GRosenberg
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1 Answer

5 votes

The slope-intercept form is:


y=mx+c

So first we will find the gradient:

Parallel lines have the same gradient:


\begin{gathered} g(x)=-2x-6 \\ \text{The gradient from the equation above is -2} \end{gathered}

So now that we know the gradient of the line as -2, we will then find the equation of the line using the formula below as it passes through (7,4):


\begin{gathered} y-y_1=m(x-x_1) \\ \text{From (7,4)} \\ x_1=7,y_1=4 \\ y-4=-2(x-7) \\ y-4=-2x+14 \\ y=-2x+14+4 \\ y=-2x+18 \end{gathered}

User Natan Shalva
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7.1k points
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